What Ohm Load Will These Speakers Make?

i got a pair of beyma pro6MI 6.5" midbass speakers. its 150watts rms 4ohms. also a pair of beyma bullet tweeters which is 4ohms 50 watts rms. i wanna run these in the back dash. i have a four channel amp (Rockford). whats the best way to run it, bridge the amp to 2x225 @ 4ohms and run a tweeter and speaker to a channel. or run separately. what ohm load will these speakes make. help!!